7 papers
Tilting pairs and Wakamatsu tilting pairs of subcategories over cleft extensions
Guoqiang Zhao, Juxiang Sun
Let be a cleft extension of abelian categories. We prove that the functor preserves and reflects (Wakamatsu) tilting pairs of subcategories…
Silting and tilting objects in cleft extensions of abelian categories
Guoqiang Zhao, Juxiang Sun
We establish connections between silting and tilting objects in an abelian category and those in a cleft extension of , which provides a me…
-Gorenstein projective and -Gorenstein injective modules over tensor rings
Guoqiang Zhao, Juxiang Sun
Let be a tensor ring and , be two classes of -modules. Under certain conditions, we prove that a -module is $Ind(\mathcal{X}…
Construction of Gorenstein projective modules over tensor rings
Guoqiang Zhao, Juxiang Sun
For a tensor ring , we obtain sufficient and necessary conditions to describe all complete projective resolutions and all Gorenstein projective modules. As a consequence, w…
Constructions of symmetric separable equivalences and their applications
Juxiang Sun, Guoqiang Zhao
Let and be symmetrically separably equivalent Artin algebras. We prove that there exist symmetrical separable equivalences between certain endomorphism algebras of module…
Gorenstein categories and separable equivalences
Guoqiang Zhao, Juxiang Sun
Let be an additive subcategory of left -modules, we establish relations of the orthogonal classes of and (co)res under sep…